Extrusion for a truck



FIG. 1 is a front perspective view of an extrusion for a truck showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a perspective view of my new design with environmental structure shown in broken lines.

The broken lines included illustrate portions of the extrusion for a truck that form no part of the claimed design.

The broken lines in FIG. 8 illustrate environmental structure that forms no part of the claimed design. 

CLAIM The ornamental design for an extrusion for a truck, as shown and described. 